malta.hh revision 5222:bb733a878f85 
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 *          Rick Strong
30 */
31
32/**
33 * @file
34 * Declaration of top level class for the Malta chipset. This class just
35 * retains pointers to all its children so the children can communicate.
36 */
37
38#ifndef __DEV_MALTA_HH__
39#define __DEV_MALTA_HH__
40
41#include "dev/platform.hh"
42#include "params/Malta.hh"
43
44class IdeController;
45class MaltaCChip;
46class MaltaPChip;
47class MaltaIO;
48class System;
49
50/**
51  * Top level class for Malta Chipset emulation.
52  * This structure just contains pointers to all the
53  * children so the children can commnicate to do the
54  * read work
55  */
56
57class Malta : public Platform
58{
59  public:
60    /** Max number of CPUs in a Malta */
61    static const int Max_CPUs = 64;
62
63    /** Pointer to the system */
64    System *system;
65
66    /** Pointer to the MaltaIO device which has the RTC */
67    MaltaIO *io;
68
69    /** Pointer to the Malta CChip.
70     * The chip contains some configuration information and
71     * all the interrupt mask and status registers
72     */
73    MaltaCChip *cchip;
74
75    /** Pointer to the Malta PChip.
76     * The pchip is the interface to the PCI bus, in our case
77     * it does not have to do much.
78     */
79    MaltaPChip *pchip;
80
81    int intr_sum_type[Malta::Max_CPUs];
82    int ipi_pending[Malta::Max_CPUs];
83
84  public:
85    /**
86     * Constructor for the Malta Class.
87     * @param name name of the object
88     * @param s system the object belongs to
89     * @param intctrl pointer to the interrupt controller
90     */
91    typedef MaltaParams Params;
92    Malta(const Params *p);
93
94    /**
95     * Return the interrupting frequency to MipsAccess
96     * @return frequency of RTC interrupts
97     */
98    virtual Tick intrFrequency();
99
100    /**
101     * Cause the cpu to post a serial interrupt to the CPU.
102     */
103    virtual void postConsoleInt();
104
105    /**
106     * Clear a posted CPU interrupt (id=55)
107     */
108    virtual void clearConsoleInt();
109
110    /**
111     * Cause the chipset to post a cpi interrupt to the CPU.
112     */
113    virtual void postPciInt(int line);
114
115    /**
116     * Clear a posted PCI->CPU interrupt
117     */
118    virtual void clearPciInt(int line);
119
120
121    virtual Addr pciToDma(Addr pciAddr) const;
122
123    /**
124     * Calculate the configuration address given a bus/dev/func.
125     */
126    virtual Addr calcConfigAddr(int bus, int dev, int func);
127
128    /**
129     * Serialize this object to the given output stream.
130     * @param os The stream to serialize to.
131     */
132    virtual void serialize(std::ostream &os);
133
134    /**
135     * Reconstruct the state of this object from a checkpoint.
136     * @param cp The checkpoint use.
137     * @param section The section name of this object
138     */
139    virtual void unserialize(Checkpoint *cp, const std::string &section);
140};
141
142#endif // __DEV_MALTA_HH__
143